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Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP
engine and blade. Disconnect spark plug wire and
secure away from spark plug. Engine and
components are HOT. Avoid serious burns, allow
sufficient time for all components to cool.
4.5. BATTERY SERVICE
4.5.1. NEW BATTERY PREPARATION
1. Remove battery from carton.
2. Place battery in a well ventilated area on a level
non-concrete surface.
3. Test battery. Refer to Section “Battery Testing”. If
battery needs charging, charge battery. Refer to
Section “Battery Charging”.
4. Connect positive (+) lead (red) first, from battery
harness to the positive terminal (+) on battery using
bolt and nut plate supplied with battery. Connect
negative (-) lead (black) last, to negative terminal (-)
on battery using bolt and nut plate. Apply a small
amount of grease over terminals to prevent
corrosion. NOTE: Battery may come with harness
already connected. If so, simply check to be sure
terminal hardware is securely tightened.
5. Install battery into power unit.
6. Plug main harness battery harness connector
WARNING
Shield the positive terminal with terminal cover
located on battery harness. This prevents metal from
touching the positive terminal, which could cause
sparks.
4.5.2. BATTERY SERVICE
1. Remove rear cover from mower. Refer to
Section “Rear Cover Removal”.
2. Test battery. Refer to Section “Battery Testing”. If
battery needs charging, charge battery. Refer to
Section “Battery Charging”.
3. If battery will not accept charge or is partially
charged after charging per instructions, replace with
new battery.
4.5.3. BATTERY STORAGE
If Walk Behind is to be stored out of season on its
rear bumper, it is recommended the battery be
removed, charged and stored.
1. Remove battery.
2. Perform battery service. Refer to Section
“Battery Service”.
3. Store battery in an area away from the Walk
Behind on a wood surface. DO NOT STORE
BATTERY ON A CONCRETE SURFACE.
4.5.4. BATTERY TESTING
Check the battery’s state of charge using a
voltmeter. Remember to hook the positive lead to
the battery’s positive terminal, and the negative lead
to the negative terminal. Check reading against chart
below. If voltage reads less than 12.80 volts, charge
battery. Refer to Section “Battery Charging”.
Batter
y
Condition
State of Charge Digital Voltmeter
100% Charged 12.80v
75% Charged 12.40v
50% Charged 12.10v
25% Charged 11.90v
0% Charged Less than 11.80v
4.5.5. BATTERY CHARGING
Supplied DC charger. Plug charger connector
into battery harness connector. See Figure 4.10.
Plug charger into wall outlet and charge battery for
48 hours. (Longer periods will not damage battery.)
Automotive-type charger. Connect battery
charger to battery terminals; RED to positive (+) and
BLACK to negative (-) terminal. Slow charge battery
at 0.4 amps for 5-10 hours. For quick charge, charge
battery at 4.0 amps for 30 minutes.
FIGURE 4.10
WARNING
Keep all sparks, flame and fire away from area when
charging battery or when handling battery. Never use
“BOOST” chargers on the battery.
BATTERY
BATTERY
HARNESS
LEADS
MAIN
HARNESS
CONNECTOR
BATTERY HARNESS
CONNECTOR (CHARGER
CONNECTS HERE)